Apparatus for effecting the removal of foreing bodies from carded webs



March 30, 1937. A. P. ALBERO' 2,075,156

APPARATUS FOR EFFECTING THE REMOVAL OF FOREIGN BODIES FROM CARDED vmas Filed Nov; 20, 1935 2 Sheets-Sheet 1' Inventor w. 9W A tborney.

' .4. P/Ilm:

March 30, 1937. A. P. ALBERO 2,075,156

APPARATUS FOR EFFECTING THE REMOVAL OF FOREIGN BODIES FROM CARDED WEBS 2 sheets-sheet 2 Inventbr J7. Pfllmo I Filed Nov. 20, 1.935

Patented Mar. 30, 1937 2,075,156 APPARATUS FOR EFFECTING THE REMOVAL or FOREIGN WEBS BODIES FROM CARDED Antonio Peralta Albero, Almazora, Castellon de la Plana, Spain Application November 20, 1935, Serial No. 50,778

In Spain November 22, 1934 7 Claims.

It is known that in the operation of the carding engines which form part of the plant for the preparation of textile fibres for spinning, the fibres are removed from the. machines in the form of. webs or thin layers detached by the to-and-fro motion of the doifing combs which operate in the carding engines as the removing members.

It very frequently happens that the webs carry mixed with them various foreign substances, such as vegetable particles or residues, which were originally mixed with the fibres beforecarding, and also the residues of other textile substances in the form of sprigs or portions of threads which come from the fluff which has escaped in the action of unravelling the rags from which the flufi.

is derived.

' It is essential to remove these foreign substances from the webs so that in the following operations of spinning or of combing and in the thread produced, the foreign substances, which lower the good quality, do not appear.

To attain this result in industrial practice a method is followed which consists in triturating the foreign bodies strongly in the fibres which constitute the web in order to break them up and divide them so that in the subsequent operations carried out between the cards and the take-up drum or in the combings, the said substances are easily removed from the mass of the fibres. As

the foreign substances ordinarily take the form of bodies each of a bulk greater than that of the fibres of the web, in practice recourse is had to the method aforesaid by the system which consists in treating the webs by causing them to pass between cylinders with channelled surfaces and a with smooth surfaces between which the webs are subjected to rolling; these cylinders are forced to roll on each other by the effect of a mechanically transmitted rotary movement,- appropriate members being provided so that the rolling shall be carried out under a pressure between the cylinders, exerted by the action of springs or by the action of weights.

In the accompanying drawings is represented by way of example a machine set up according to the invention.

Figure 1 is a side elevation of the machine of vertical projection.

Figure 2 is a ,front view of the machine.

Figure 3 is a diagrammatic view of the principal operating parts of the machine, to make the invention more clear.

The machine is formed of a solid frame provided with two standards I, 2 on which are mounted two smooth cylinders 3, 4, in tangential contact and made of hard, tempered steel or other similar hard material, whose bearings 5, 5 and I, 8 are adapted to slide in slides such as 9, provided in the frame members I, 2. The upper bearings 5 and "I are subject to the action of coiled springs l2 and I3 under compression which isadjustable owing to the contact of the springs on the seatings I4 and I5 provided on the spindles I6 and II; the spindles I6 and II are screw-threaded and engaged by screw nuts I8 and I9 in the form of wheels with helicoidal teeth which engage with worms 20 and 2| provided on the shaft 24, which can be operated by the hand-wheels 22 and 23. By the operation of these wheels 22, 23 the pressure exerted resiliently through the springs I2, I3 by the cylinder 3 on the other cylinder 4 canbe regulated, these two cylinders comprising the rolling implements for the webs.

To ensure that the spindles I6 and I! shall have a longitudinal movement permitting control of the pressure of the springs I2 and I3, and so that they shall not have rotational movement, the seatings I4 and. I5 are provided on their peripheries with grooves for engagement by locking members I4 and I5 by means of which rotational movement is prevented. The locking members I4 and I5. are movable so that they may be withdrawn when it is desired eventually to regulate the position of the spindles I6 and I! by hand with respect to the screw nuts I8'and I9.

The cylinder 4 is rotated by a toothed wheel 25 keyed on the shaft 26 which in its turn is actuated by another wheel driven by a motor or from the mechanism of the carding machine, when the machine according to the invention is installed following it or next to it.

On the shaft 26 and at its other extremity is provided another toothed wheel 21 engaging with the wheel 28 keyed on the shaft 29 of the other cylinder 3, so that the two cylinders are positively driven to carry out the work of rolling and compressing the webs.

30 is an endless sheet device formed from leather or other suitable material, which device is mounted on two guide cylinders 3I and 32.

This device is adapted to guide the webs passing from the cards into tangential contact with the cylinders 3 and 4 so that they shall be subjected to the rolling action of the cylinders.

5 Another endless sheet device 33 serves for the removal of the webs after they have passed through the rolling cylinders, the endless sheet 33 beingformed of leather or any other suitable material and being mounted on guide cylinders 34 and 35.

The movement of the webs through the machine is shown by the dotted line 36.

The movement of the endless devices 30 and 33 is effected by means of a gear transmission comprising the toothed wheel 31 mounted on the shaft 26 of the cylinder 4, and the two pinions 38 and 39 in engagement respectively with pinions 40 and 4| mounted on the spindles of the cylinders 32 and 35 of .the feed and delivery devices.

42 (Figure 3) is a cylinder with smooth surface, of polished steel, in contact with the cylinder 3 and serving to detach from the surface of the cylinder 3 the substances which remain adhering thereto after the rolling. An equivalent 5 action is effected in respect of cylinder 4 by the endless sheet 33 itself, when it is disposed in contact with the cylinder 4.

For effectively completing the separation of the substances adhering to the surface of the cylinders 3 and 4 and not removed by the cylinder 42 and the endless sheet 33, there are provided respectively the thin scraping blades 43 and 44 of hard steel or other scraping parts with a regulating action, actuated for example by the weights 45 and 46 and mounted on the pivots 41 and 48.

To ensure the more effective control of the action of the said thin blades 43 and 44 there are provided fixing elements 52 and 53, for example, screws, which bear upon the blades and which can penetrate more or less into the fixed parts 54 and 55, so that in operation the blades 43 and 44 can only deviate from the surface of the cylinders a small distance sufiicient to engage or grip the particles of the impurities to be extracted, to avoid direct contact between the said surfaces and the blades and to secure the cleaning of the said surfaces by the impurities themselves.

The movement of the cleaning cylinder 42 is effected by means of a belt drive, cord or cable 49 passed over a grooved pulley rigidly mounted on the shaft of the cylinder 3 and by another grooved pulley 5| secured to the shaft of the said cleaning cylinder;

- The machine hereinbefore described may be subject to modifications in form and disposition of its parts without the essential object of the invention being altered; for example, instead of providing the springs 12 and i3 to exert the presogous result can be obtained by means of weights sure of the cylinder 3 on the cylinder 4 an, analone pair of cylinders of hard material with smooth surfaces, supports in which the said cylinders are carried so as to be capable of rotation one on the other, means effecting a mechanically transmitted rotary movement to the said cylinders tov cause them to roll one on the other, meansfor feeding and receiving from the said cylinders the webs from the carding engine, the rolling of the said web being effected under the pressure of one cylinder on the other in order to effect the crushing of the foreign bodies mixed with the fibres when the web is passed between the pair of cylinders, and cleaning elements applied to the surface of the said cylinders for the removal therefrom of the substances which would eventually remain adhering to the said cylinders.

2. A machine as specified in claim 1, provided with at least one cleaning element consisting of 1 an auxiliary cylinder with a smooth surface and of hard material applied in contact with the surface of one of the main cylinders, and means for effecting the rotation of the auxiliary cylinder about its axis.

3. A machine as specified inclaiml, provided with at least one cleaning element consisting of an endless sheet, rollers about which the said endless sheet extends, the said sheet being maintained in contact with the surface of the main cylinder, and means for effecting the rotation of one of the rollers upon which the said endless sheet is carried.

4. A machine as specified in claim 1, provided with at least one cleaning element consisting of a scraping blade, means for supporting the said scraping blade in proximity to the surface of one of the main cylinders, and an adjusting member by which the said blade may be set to the small distance from the surface of the main cylinder necessary for the foreign bodies extracted from the web to remain held between the blade and the surface of the cylinder whereby direct con--' tact of. the blade with the cylinder and consequent wear is avoided, and whereby the cleaning of the cylinder is effected by the foreign bodies which have been extracted from the web and retained by the blade.

5. A'machine as specified in claim 1, provided with means for feeding webs from the carding machine of the cylinders, consisting of an endless sheet, rollers about which the said endless sheet is caused to travel, and means for effecting the rotation of the said rollers, the said sheet being positioned in close proximity to the surface of the cylinder.

6. A machine as specified in claim 1, provided with means for withdrawing the web freed from foreign bodies from the cylinders of the machine, consisting of an endless sheet, rollers about which the said endless sheet is caused to travel, and means for eifecting the rotation of the said rollers, the said sheet being positioned in close proximity to the surface of the cylinder.

7. A machine as specified in claim 1, wherein the pair of cylinders is provided with means for exerting pressure between the cylinders, consisting of springs and means for adjusting the pressure exerted by the said springs.

ANTONIO PERALTA ALBERO. 

